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CVE-2026-33894

CVE-2026-33894 · Forge has signature forgery in RSA-PKCS due to ASN.1 extra field

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatures by stuffing “garbage” bytes within the ASN structure in order to construct a signature that passes verification, enabling Bleichenbacher style forgery. This issue is similar to CVE-2022-24771, but adds bytes in an addition field within the ASN structure, rather than outside of it. Additionally, forge does not validate that signatures include a minimum of 8 bytes of padding as defined by the specification, providing attackers additional space to construct Bleichenbacher forgeries. Version 1.4.0 patches the issue.

CVSS 7.5 · Alta · EPSS 0,5% · Corrección disponible

Publicación
Actualización

Pila tecnológica: system · node

Productos y versiones afectados

  • forge

    Versiones
    • < 1.4.0: Afectada

    Sin corrección publicada

  • node-forge npm

    Intervalos de versiones afectados
    • SEMVER: ≤ 1.4.0

    Sin corrección publicada

  • node-forge npm

    Intervalos de versiones afectados
    • SEMVER: < 1.4.0

    Actualiza a 1.4.0

  • node-node-forge Ubuntu:20.04:LTS

    Versiones
    • 0.8.5~dfsg-2
    • 0.9.1~dfsg-1
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

  • node-node-forge Ubuntu:22.04:LTS

    Versiones
    • 0.10.0~dfsg-3
    • 1.2.1~dfsg-2
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

Fuentes originales

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